consists of at least one challenge that indicates the authentication scheme(s) and parameters applicable to the effective request URI.
Quick facts
Description
consists of at least one challenge that indicates the authentication scheme(s) and parameters applicable to the effective request URI.
Syntax
WWW-Authenticate: Basic realm="api"
Related status codes
Related headers
Frequently asked questions
consists of at least one challenge that indicates the authentication scheme(s) and parameters applicable to the effective request URI.
It is classified as a response header and can appear in requests or responses depending on context.
Sources & standards
Updated 2026-09-13
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This page provides original, human-reviewed information about HTTP headers such as WWW-Authenticate, the HTTP Header Reference and related concepts. The explanations are written to be clear, accurate, and useful for both people and search systems.
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